From: Daniel Lezcano <daniel.lezcano-GANU6spQydw@public.gmane.org>
To: Dan Smith <danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
Cc: containers-qjLDD68F18O7TbgM5vRIOg@public.gmane.org,
Nathan Lynch <ntl-e+AXbWqSrlAAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH] [RFC] c/r: Add UTS support
Date: Fri, 13 Mar 2009 00:24:22 +0100 [thread overview]
Message-ID: <49B999A6.2000005@free.fr> (raw)
In-Reply-To: <873adipc5l.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
Dan Smith wrote:
> DL> I guess it will be esay to implement with a nsproxy level counter.
> DL> Each time you unshare, the new nsproxy count is incremented.
> DL> Assuming the init_nsproxy is level 0, when the nsproxy counter is
> DL> > 1, the process is uncheckpointable.
>
> This should also be possible by just making sure that the nsproxy of
> the root process being checkpointed is the same as any of the
> children, correct? That way we avoid having to modify the core
> nsproxy bits and can still reject any nested namespaces.
>
Right, this is another option. The nsproxy counter will allow to flag at
runtime a process to be uncheckpointable. The nsproxy comparison will
detect nested nsproxies at checkpoint time.
next prev parent reply other threads:[~2009-03-12 23:24 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-12 17:56 [PATCH] [RFC] c/r: Add UTS support Dan Smith
[not found] ` <1236880612-15316-1-git-send-email-danms-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-12 21:29 ` Nathan Lynch
2009-03-12 21:56 ` Dan Smith
[not found] ` <87fxhipfrh.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-12 22:48 ` Serge E. Hallyn
[not found] ` <20090312224820.GA12723-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2009-03-12 22:56 ` Dan Smith
[not found] ` <87bps6pcyf.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-13 0:12 ` Serge E. Hallyn
2009-03-18 8:27 ` Oren Laadan
[not found] ` <49C0B069.6060300-eQaUEPhvms7ENvBUuze7eA@public.gmane.org>
2009-03-18 9:01 ` Cedric Le Goater
2009-03-18 13:49 ` Serge E. Hallyn
[not found] ` <20090318134932.GC22636-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-18 14:04 ` Dan Smith
[not found] ` <878wn353mf.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-18 15:46 ` Cedric Le Goater
[not found] ` <49C1175F.9060600-GANU6spQydw@public.gmane.org>
2009-03-18 15:55 ` Dan Smith
[not found] ` <874oxq6d1x.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-18 16:02 ` Cedric Le Goater
2009-03-18 19:50 ` Mike Waychison
[not found] ` <49C1506C.1080500-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-19 0:10 ` Eric W. Biederman
[not found] ` <m1bprye5io.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-19 0:46 ` Mike Waychison
[not found] ` <49C195CF.1080506-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-19 1:06 ` Eric W. Biederman
[not found] ` <m1ab7icodl.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-19 1:51 ` Mike Waychison
[not found] ` <49C1A52D.4000503-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-19 3:28 ` Eric W. Biederman
[not found] ` <m1iqm6xkc7.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-20 17:26 ` Serge E. Hallyn
[not found] ` <20090320172616.GA7203-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-20 19:51 ` Mike Waychison
[not found] ` <49C3F3C0.30100-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org>
2009-03-20 20:40 ` Serge E. Hallyn
2009-03-20 20:53 ` Oren Laadan
2009-03-20 23:26 ` Eric W. Biederman
[not found] ` <m1d4cb3he5.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-21 2:38 ` Serge E. Hallyn
[not found] ` <20090321023834.GA21064-A9i7LUbDfNHQT0dZR+AlfA@public.gmane.org>
2009-03-21 3:39 ` Eric W. Biederman
[not found] ` <m1prgbzgqq.fsf-+imSwln9KH6u2/kzUuoCbdi2O/JbrIOy@public.gmane.org>
2009-03-21 14:51 ` Serge E. Hallyn
2009-03-12 22:48 ` Daniel Lezcano
[not found] ` <49B99144.9000106-GANU6spQydw@public.gmane.org>
2009-03-12 22:58 ` Dan Smith
[not found] ` <877i2upcvo.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-12 23:11 ` Daniel Lezcano
[not found] ` <49B996BC.1090908-GANU6spQydw@public.gmane.org>
2009-03-12 23:13 ` Dan Smith
[not found] ` <873adipc5l.fsf-FLMGYpZoEPULwtHQx/6qkW3U47Q5hpJU@public.gmane.org>
2009-03-12 23:24 ` Daniel Lezcano [this message]
[not found] ` <49B999A6.2000005-GANU6spQydw@public.gmane.org>
2009-03-13 15:30 ` Serge E. Hallyn
[not found] ` <20090313153004.GA8317-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-13 15:51 ` Daniel Lezcano
[not found] ` <49BA811C.4070302-GANU6spQydw@public.gmane.org>
2009-03-13 17:15 ` Serge E. Hallyn
[not found] ` <20090313171556.GB10685-r/Jw6+rmf7HQT0dZR+AlfA@public.gmane.org>
2009-03-13 17:53 ` Daniel Lezcano
[not found] ` <49BA9D9C.2030208-GANU6spQydw@public.gmane.org>
2009-03-25 12:01 ` Eric W. Biederman
2009-03-13 15:59 ` Cedric Le Goater
[not found] ` <49BA82CE.4090206-GANU6spQydw@public.gmane.org>
2009-03-13 16:04 ` Daniel Lezcano
2009-03-18 8:32 ` Oren Laadan
2009-03-18 8:35 ` Oren Laadan
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